Wednesday, July 31, 2013

Activity #8-Final Post

Final Post (Creating your own teaching ideas)

1. Create your own teaching ideas.
  • Must Identify and Meet 3 Next Generation Science education standards within the K-2 grade band.
    • Engagement in practice is language intensive and requires students to participate in classroom science discourse.
    • Obtaining, evaluating, and communicating evidence
    • Repetition in different contexts, is necessary to build familiarity.

  • Must be original work
    • The concept covered in the lesson is Sink vs. Float.  For this lesson I would have a bucket of water and 7 different objects.  I would have each student come up to the table where they would place one of the objects in the water bucket.  Each student will also have a worksheet that shows a picture of the object and next to it, they would have to write whether the object sinks or floats.  By having a student drop the object in the water, as opposed to me will help keep the students engaged.  Also, by including different objects it will help in repetition for the students to really understand the concept. Also, by writing the evidence down, they can evaluate it and talk about it with their classmates as well. 

  • Must be scientifically accurate and appropriate for the directed grade level.
    • Grade Level = Kindergarten

  • Must have an accompanying worksheet with at least 7-10 questions related to each activity.  Answering these questions should be related to meeting the scientific standards.


    • The students will engage in this activity by being the ones to put the objects in the water and seeing first hand what will happen.  The students will also have to participate in the activity in order to get the right answer to write on their worksheet.  The activity is also repetitive but with different objects so that students can understand that some objects float and others sink.  They will also be writing down and obtaining the answers on their worksheet and evaluating and discussing the outcome with their classmates and me.



2. How has your understanding of science and chemistry in particular, changed due to your experiences in this class?
  • My understanding of science and chemistry has changed due to this class was by doing simulations I never really realized there was that much of a difference between liquids, solids, and gases.  I also never realized that basically everything in our entire life and world is made up of  chemicals, which after thinking about it, everything is made up of something, I just didn't know what it was until now.  I really learned what things are consumed of and what exactly is going on inside of the states of matter. 


3. What was your most challenging concept covered, and why?
  • My most challenging concept covered was atomic structure.  I think why I struggled so much with that concept was because they were things that I can't see, and I knew some of the information from high school, but even then it was hard for me.  Making the models makes it much easier to understand but it's difficult when they are physically something that you will never see like oxygen or helium and what the atomic structure is.


4. How could you facilitate future learning to your students who might also find learning about science and chemistry challenging?
  • How I could facilitate future learning to my students who might also find learning about science and chemistry challenging is by explaining to them that atomic structures are things that you don't generally see, but they are things that we can make as structures for better understanding, and having them make models similar to what we made for this class, because I think for a lot of people that by physically making a 3D model it can help to grasp a concept.


5.  As you think about your future in education, give 3 ways you think you'll be able to implement the skills you've learned in this class (it doesn't need to be chemistry content based).
  • Time management- making sure that you set aside enough time for students to take their time with the lab and have fun with it.
  • Thinking outside the box- letting kids take their own "wheel" with labs, because looking back on other students simulations that they did, we all did them a little differently or had our own ideas on how to make an atomic structure. I think it makes it more of their own work, and the "teachers work"
  • Ask for help when you need it-Going into this class I was a little weary because I hadn't taken chemistry since my sophomore year in high school, and here I am going to be a senior this year, so it had been a while.  However, my aunt is also a teacher and she does a lot of tutoring and such, so I went to her for some help with questions that I didn't quite understand or even if I wanted to double check an answer with her.  People are there to help, and don't mind giving it, so just don't be afraid to ask for assistance when you need it.

Tuesday, July 30, 2013

Activity #7

Gases:


1. Complete the Clicker questions on Gas Laws in the Teaching Ideas "Concept Questions for Chemistry using phET" posted  by Trisha Loblein.  Use the phET simulation Gas Properties to help answer the questions.

 
  • What does this graph indicate?
    • A. - Pressure and Volume are indirectly related and P1V1 = P2V2 - it's just adding one more 
    • B.
    • C.
    • D.
  • What variables were held constant?
    • A. Pressure and Volume?
    • B. Pressure, number of particles, and Volume?
    • C. Number of Particles and temperature? - because those are the ones that can't be changed.
    • Volume, number of particles, and temperature?
  • What does the graph indicate?
    • A.
    • B.
    • C.
    • D. X & Y are directly related and x1/y1 = x2/y2 - because it is just halved
  • Which explanation could be used to explain the relationship between temperature and pressure for gases?
    • A. Pressure depends on the number of collisions and if the temperature increases, the molecules increase speed, so they would hit the sides more and he pressure would go up.
    • B. Pressure depends on the energy of collisions and if the temperature increases, the molecules increase speed, so they would hit the sides with more energy and the pressure would go up.
    • C. Both help explain - They both help explain because  it can depend on the energy of the collisions and the number of them.
    • D. Neither help explain
  • List the things that affect gas pressure and draw graphs and equations that shows the correct relationships:
    • temperature
    • Number of particles
    • volume
    • pressure







Monday, July 29, 2013

Activity #6

Acids & Bases:

1.  Complete "Concept Questions for Chemistry PhET":
  • The color of a solution identifies if it is an acid base, or neutral solution.
    • A. True
    • B. False - pH determines if it's a base, acid, or neutral
    • C. Pink are base and clear are acid
  • Which solution is basic?
    • A. Milk
    • B. Blood
    • C. Custom at pH =12
    • D. More than one (B &C) are basic- they are both above a pH of 7 which makes them basic.
    • E. None
  • Which Solution is acidic?
    • A. pH=13
    • B. pH = 7
    • C. pH = 2- The high level makes it acidic
    • D. More than one
    • E. Difficult to tell.
  • Which solution is basic?
    • A. Water pH = 7
    • B. pH = 13 -
    • C. Soda = 2.5
  • Which solution is acidic?
    • A. Coffee = pH 5
    • B. Soda = 2.5
    • C. pH = 13
    • D. More than one (both A and B) are acidic
    • E. None
  • How will adding water effect the pH?
    • A. increase the pH (More water lessens the acidity, so the pH goes up)
    •  B. Decrease the pH
    • C. No pH change.
  • How will equal amount of water effect the pH?
    • A. Increase the pH
    • B. Decrease the pH (More water less the basicity, so the pH goes down)
    • C. The pH will be cut in half
    • D. No pH change
  • What is the order from most acidic to most basic?
    • A. ABC - The lower the pH, the higher the acidity. 
    • B. ACB
    • C. BAC
    • D. CBA
    • E. CAB
  • What is the order from most acidic to most basic?
    • A. ABC
    • B. ACB
    • C. BAC- the lower the pH, the higher the acidity. 
    • D. CBA
    • E. CAB
  • If spit has a pH of 7.4, what does that tell you about the water equilibrium?
    • A. Something was added that made the equilibrium shift left-
    • B. Something as added that made the equilibrium shift right
    • C. pH has nothing to do with the water equilibrium

2. Complete teaching ideas "Intro to Strong and Weak Acids and Bases:




 



Activity #5

States of Matter and Intermolecular Forces

1. Convert 0F, 32F, 70F, and 212F to Kelvin:

0F = 255.372K
32F = 273.15K
70F = 294.261K
212F =  373.15K

2. Complete the Teaching Ideas "States of Matter Simulation Lab" by Kelly Vaughn:





 3.  In the states of matter simulation, chose the solid, liquid, and gas tab at the top of the screen.  Choose the water molecule and cool the water to 0K.  Describe how the water molecules are aligned and attracted to each other.  Which atoms are attracted to which other atoms? 

The water molecules remain very close together and the atoms that are attracted to other atoms are the hydrogen and oxygen atoms. 


4. Record a  possible temperature and pressure required to make oxygen a liquid:
 
A possible temperature that could be required to make oxygen a liquid is:  114K
A possible pressure that could be required to make oxygen a liquid is: 4ATM
 
5. List and describe at least 2 science standards that this activity addresses:

D.4.3. Understand that substances can exist in different states-solid, liquid, gas
* We could see through the simulation that substances exist in 3 different states and how they react in certain circumstances. 

D.4.4 Observe and describe changes in form, temperature, color, speed, and direction of objects and construct explanations for the changes. 
* We watched the molecules change due to temperature and the speed of them would change based off the temperature and form as well. 
 



 
 

Tuesday, July 16, 2013

Chemistry-Activity #4 (Density)



The number of electrons for the element of Boron is 4.  The number of protons is 5 and the number of neutrons is 5.  The density of Boron is 2.37 g/cm. 
 
The number of electrons for the element of lithium is 3.  The number of protons is 3 and the number of neutrons is 3.  The density of Lithium is .53 g/cm. 

What is Density?
Density is the quantity of mass per unit volume. 

Equation for Density:
Density = Mass/Volume (D = M/V)

I did the simulation on density where it dealt with different types of objects and you would put them in the water tank to see if they float or not as well as the mass of them and their volume.  You could also change the size of the objects to make them bigger and make them weigh more also.  What I found interesting was that generally no matter how much the objects weighed or how big you made them, it would still either float or sink. 

In the mystery block simulation there were 5 different blocks that we each of different size and weight.
The yellow block (A) had a mass of: 65.14kg
Volume: 103.38L
Density: .6204
Identification of block:  Aluminum

The blue block (B) had a mass of: .64 kg
Volume: 100.64L
Density:  .0063593
Identification of Block: Ice

The green block (C) had a mass of:  4.08kg
Volume:  104.08
Density:  .0392
Identification of Block: Wood

The red block (D) had a mass of: 3.10 kg
Volume:  103.10L
Density:  .0300679
Identification of Block:  Ice

The purple block (E) had a mass of:  3.53 kg
Volume:  101.10L
Density:  .0349
Identification of Block: Brick

The science standards that could be met through these simulations and activities are:
*Evaluating a product to get an answer (Using Mass/Volume to get Density)
* Understand and identify objects (using what we knew about mass and volume to identify the object)
* Knowing properties of objects and materials.
* Properties and changes of properties in matter.

http://solar-center.stanford.edu/standards/

Monday, July 15, 2013

Chemistry Activity- #3


This is my 3d model of Alloxan.
 
Alloxan[1]
Ball-and-stick model of alloxan


 
This is my 3d model of Tylenol.
 

Acetaminophen/Paracetamol (Kekulé Diagram)
 

IUPAC NAME:

 
This is my 3d model of Pepto-Bismol. 
Systematic (IUPAC) name
2-hydroxy-2H,4H-benzo[d]1,3-dioxa-2-bismacyclohexan-4-one
 
 
20 foods or Chemicals with IUPAC, common name, molecule formula, and picture:
 
IUPAC: Methanol
Common Name: Wood Alcohol
Molecule Formula: CH3OH
 
molecular formula of wood alcohol
 
 
IUPAC: Ethanol
Common Name: Alcohol
Molecule Formula: C2H5OH
 
 
 
IUPAC: Isopropyl Alcohol
Common Name: Rubbing Alcohol
Molecule Formula:C3H7OH
 
ChemSpider 2D Image | Isopropanol | C3H8O
 
IUPAC: Butyl Alcohol
Common Name: Butanol
Molecule Formula: C4H9OH
 
 
IUPAC: Pentanol
Common Name: Amyl Alcohol
Molecule Formula: C5H11OH
 
Pentan-1-ol-2D-skeletal.png
 
 
IUPAC: Hexadecan-1-ol
Common Name: Cetyl Alcohol
Molecule Formula: C16H33OH
 
 
 
IUPAC: Ethane- 1,2-diol
Common Name: Ethylene glycol
Molecule Formula: C2H4(OH)2
 
 
IUPAC: Propane-1, 2-diol
Common Name: Propylene Glycol
Molecule Formula:  C3H6(OH)2
 
 
IUPAC: Propane-1,2,3-triol
Common Name: Glycerol
Molecule Formula: C3H5(OH)3
 
 
IUPAC: Butane-1,2,3,4-tetraol
Common Name: Erythritol, Threitol
Molecule Formula: C4H6(OH)4
 
 
 
 
IUPAC:  Pentane-1,2,3,4,5-pentol 
Common Name: Xylitol
Molecule Formula: C4H6(OH)4
 
 
IUPAC: Hexane-1,2,3,4,5,6-hexol
Common Name: Mannitol, Sorbitol
Molecule Formula: C6H8(OH)6
 
 
IUPAC: Heptane-1,2,3,4,5,6,7-heptol
Common Name: Volemitol
Molecule Formula: C7H9(OH)7
 
 
IUPAC: Prop-2-ene-1-ol
Common Name: Allyl alcohol
Molecule Formula: C3H5OH
 
 
IUPAC: 3,7-Dimethylocta02,6-dien-1-ol
Common Name: Geraniol
Molecule Formula: C3H5OH
 
 
IUPAC: Prop-2-in-1-ol
Common Name: Propargyl alcohol
Molecule Formula: C3H3OH
 
 
IUPAC: Cyclohexane-1,2,3,4,5,6-hexol
Common Name: Inositol
Molecule Formula: C6H6(OH)6
 
 
IUPAC: 2 - (2-propyl)-methyl-cyclohexane 1-ol
Common Name: Menthol
Molecule Formula: C10H19OH
 
 
IUPAC: Sodium Chloride
Common Name: Salt
Molecule Formula: NaCl
 
This is the chemical structure of the primary ingredient in the drug called bath salts.
 
IUPAC: (2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
Common Name: Sugar, sucrose
Molecule Formula: C12H22O11
This is the chemical structure of sucrose.
 
 
Look over your molecules and the bonding characteristics, how many bonds does each of the following elements typically have? Carbon? Hydrogen? Oxygen?
Each of them typically have about 8-9 bonds.  They have around 5-6 hydrogen and oxygen atoms and very few carbon atoms.   
What does IUPAC stand for?
The International Union of Pure and Applied Chemistry. 
The chemicals that I think are actually in this product (http://www.naturalhealthcareproducts.com/Cleaning-Products.php) are:
 
* Octane, ethanol, and petrol from the eucalyptus oil. 
* carboxymethyl from the redeposition agent

 



 
 
 
 
 
 
 
 


Chemistry-Activity #2

 
Activity:  Creating 3-dimensional models of 3 different elements from the periodic table.

Materials Used:  String, cheerios, marker, peanuts, chocolate chips. 
 

 
This 3-dimensional model represents the element of Helium.  The 2 cheerios on the outer orbit represents the 2 electrons.  The two black cheerios in the middle represent the protons and the other 2 cheerios in the middle represent the neutrons.  The atomic number is 2 and the atomic mass is 4.002602

 
This 3-dimensional model represents the element of Neon.  It has 8 cheerios on the outer orbit and 2 on the inner orbit for a total of 10 electrons.  In the middle there are 10 peanuts to represent the protons and 10 chocolate chips to represent the neutrons.  Neon has an atomic number of 10 and an atomic mass of 20.1797.


 
This 3-dimensional model represents the element of Oxygen.  There are 6 cheerios on the outer orbit and 2 cheerios on the inner orbit to represent the 8 electrons.  In the middle there are 8 peanuts to symbolize the protons and 8 chocolate chips to represent the neutrons.  Oxygen has an atomic number of 8 and an atomic mass of 15.9994.
 
 
In your models, which two subatomic particles are equal in number?
The two subatomic particles that are equal in number are the number of protons and electrons.
 
How would you make an isotope for one of your models? What would change with the model?
To make Neon an isotope I would need to add 10 neutrons.  What would change with the models is there would be more neutrons in the nucleus and also making the atomic weight of 30.1797.
 
Considering the overall volume of your element models, what makes the up the most of the volume of an atom?
The nucleus which consists of the protons and neutrons. 
 
For one of your models, show with another image what happens when energy excites and electron:
 
Oxygen when it's excited.
 
Once the electron is excited, what do we typically observe when the electron returns to the ground-state?
Once the electron is excited we typically observe light and color. 
 
Why are some elements different colors when they are excited?
Some elements are different colors when they are excited because of the different structure o the atoms and their specific elements they are made up of. 
 
Explain how the colors of fireworks arise:
The colors of fireworks arise through different elements.  Bright reds are produced by strontium compounds and barium compounds attribute to green fireworks.  The results from the electron structure of atoms of the specific elements. 
 
Explain the overall organizational structure of the periodic table:
The periodic table is organized by the electron configuration and the atomic number.  It also consists of horizontal and vertical rows that divide into groups or families and periods.  The vertical column is known as a group of family and the elements within them consist of similar chemical properties.  The horizontal rows are known as a period.  The properties of these elements vary periodically throughout the period. 
 
List two examples of elements for each of these groups or classes:
Alkali Metals:  Sodium and Potassium
Earth Halogens:  Chlorine and Iodine
Nobel Gases:  Helium and Neon
Transition Metals:  Scandium and Manganese
Non-Metals: Carbon and Nitrogen
Metalloids: Boron and Silicon
 
 
 
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